CVE-2025-39952

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-10-04. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

wifi: wilc1000: avoid buffer overflow in WID string configuration

Fix the following copy overflow warning identified by Smatch checker.

drivers/net/wireless/microchip/wilc1000/wlan_cfg.c:184 wilc_wlan_parse_response_frame() error: '__memcpy()' 'cfg->s[i]->str' copy overflow (512 vs 65537)

This patch introduces size check before accessing the memory buffer. The checks are base on the WID type of received data from the firmware. For WID string configuration, the size limit is determined by individual element size in 'struct wilc_cfg_str_vals' that is maintained in 'len' field of 'struct wilc_cfg_str'.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
12%
KEV
Not listed

Published

October 4, 2025

Last Modified

August 5, 2026

Advisory Details (4)

Auto-updated Jul 30, 2026
No patch confirmed yet.
generic

wifi: wilc1000: avoid buffer overflow in WID string configuration - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fe9e4d0c39311d0f97b024147a0d155333f388b5
generic

wifi: wilc1000: avoid buffer overflow in WID string configuration - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ae50f8562306a7ea1cf3c9722f97ee244f974729
generic

wifi: wilc1000: avoid buffer overflow in WID string configuration - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6085291a1a5865d4ad70f0e5812d524ebd5d1711
generic

wifi: wilc1000: avoid buffer overflow in WID string configuration - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2203ef417044b10a8563ade6a17c74183745d72e

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-6.8 (6.8.0-106.106) @ noble2026-05-29ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1052.55+fips1) @ noble2026-05-29ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1049.52.1) @ noble2026-05-29ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1050.53~22.04.1) @ jammy2026-05-29ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1045.46) @ noble2026-05-29ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1051.57) @ noble2026-05-29ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1051.57~22.04.1) @ jammy2026-05-29ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2040.41) @ noble2026-05-29ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1052.58+fips1) @ noble2026-05-29ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1029.30) @ noble2026-05-29ubuntu
linuxKernel @ 6.6.108—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(11)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 12× in last 7d / 42× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 106 total refreshes for this CVE.

  1. 2026-08-05 12:55 UTCEG score recompute
  2. 2026-08-05 12:55 UTCVendor advisory
  3. 2026-08-05 12:55 UTCGHSA enrichment
  4. 2026-08-04 15:09 UTCEPSS rescore
  5. 2026-08-04 10:37 UTCEPSS rescore
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  9. 2026-07-30 16:27 UTCEPSS rescore
  10. 2026-07-30 06:49 UTCEG score recompute
  11. 2026-07-30 06:49 UTCVendor advisory
  12. 2026-07-30 06:49 UTCGHSA enrichment
  13. 2026-07-30 01:29 UTCEPSS rescore
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  19. 2026-07-23 18:41 UTCOSV refresh
  20. 2026-07-23 02:55 UTCEG score recompute
  21. 2026-07-22 14:07 UTCEPSS rescore
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  23. 2026-07-21 15:24 UTCEPSS rescore
  24. 2026-07-20 17:07 UTCEPSS rescore
  25. 2026-07-19 14:30 UTCEPSS rescore
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  1. 2026-07-19 14:30 UTCEPSS rescore
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  18. 2026-07-06 16:27 UTCEPSS rescore
  19. 2026-07-06 16:27 UTCEPSS rescore
  20. 2026-07-06 13:00 UTCOSV refresh
  21. 2026-07-06 02:23 UTCEPSS rescore
  22. 2026-07-04 06:30 UTCEPSS rescore
  23. 2026-07-01 15:06 UTCEPSS rescore
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  25. 2026-06-30 23:22 UTCEPSS rescore
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  27. 2026-06-29 14:06 UTCEPSS rescore
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  31. 2026-06-28 04:55 UTCEPSS rescore
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  45. 2026-06-21 01:59 UTCEPSS rescore
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  47. 2026-06-19 19:25 UTCEPSS rescore
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  49. 2026-06-18 17:52 UTCEPSS rescore
  50. 2026-06-18 17:52 UTCEPSS rescore
  51. 2026-06-18 01:05 UTCOSV refresh
  52. 2026-06-17 17:52 UTCEPSS rescore
  53. 2026-06-16 17:52 UTCEPSS rescore
  54. 2026-06-16 17:52 UTCEPSS rescore
  55. 2026-06-14 23:17 UTCEPSS rescore
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  75. 2026-05-31 22:30 UTCEPSS rescore

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2025-39952?
CVE-2025-39952 is a high vulnerability published on October 4, 2025. In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: avoid buffer overflow in WID string configuration Fix the following copy overflow warning identified by Smatch checker. drivers/net/wireless/microchip/wilc1000/wlancfg.c:184 wilcwlanparseresponse_frame() error:…
When was CVE-2025-39952 disclosed?
CVE-2025-39952 was first published in the National Vulnerability Database on October 4, 2025, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-39952 actively exploited?
CVE-2025-39952 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 88.4% of all scored CVEs.
What is the CVSS score of CVE-2025-39952?
CVE-2025-39952 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2025-39952?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-39952, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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